The NordVPN client for Linux provides a robust command-line interface (CLI) that allows users to manage their VPN connections, configure settings, and access various features offered by NordVPN directly from the terminal. This document serves as an extensive guide to the NordVPN Linux CLI, detailing its commands, options, flags, and functionalities. The information is compiled from official NordVPN documentation and related resources, aiming to provide a thorough reference for both novice and advanced users.
The CLI enables users to select server locations, or allow the application to automatically choose the optimal server. It also offers customization of connection parameters, such as protocol selection (e.g., NordLynx, OpenVPN) and security features like the Kill Switch. The application interacts with several system components, including network interfaces via tuntap, firewall rules via iptables, routing via iproute2, and DNS